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Deep Look
A Sand Dollar's Breakfast is Totally Metal
Season 5
Episode 18
Their skeletons are prized by beachcombers, but sand dollars look way different in their lives beneath the waves. Covered in thousands of purple spines, they have a bizarre diet that helps them exploit the turbulent waters of the sandy sea floor.
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They’re colorful, invasive and spreading fast. Meet the spotted lanternfly — and why it’s so hard to
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From ocean depths to forests, some animals glow — and it’s key to their survival.
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Eggs helped animals conquer land—but most mammals stopped laying them. Why is that?
10:17
Here’s what compound eyes really do — and why flies see you in slow motion.
15:28
Whether it’s seaweed cloaks or see-through wings, these animals know how to hide. Meet four masters
16:18
Meet four creatures who’ve mastered the art of making shelter.
4:46
Peppermint stick insect packs a peppermint-scented blast powerful enough to fend off hungry predator
18:20
Death might seem like the end, but for these five creatures, it’s just part of the job.
3:57
If there ever was a bug that we should all raise a glass of wine for, it's the mealybug destroyer.
4:30
Dragonflies and damselflies may look alike, but these expert hunters have distinct strategies.
3:28
Tiger beetles sprint so quickly they momentarily outrun their own vision!
3:50
Lovebugs can spend anywhere from a half-hour to a couple of days attached to each other.